Gigabyte B550M K AM4 Micro ATX Motherboard (GA-B550M-K) - AMD AM4 Socket: Supports AMD Ryzen 5000 Series / Ryzen 5000 G-Series / Ryzen 4000 G-Series / Ryzen 3000 and Ryzen 3000 G-Series Processors, Memory: 4 x DDR4 DIMM Sockets (up to 128GB), Rear IO Ports: 1 x PS/2 keyboard/mouse, 1 x DisplayPort, 1 x HDMI, 4 x USB 3.2 Gen 1, 4 x USB 2.0/1.1, 1 x RJ-45, 3 x Audio Jacks, I/O Controller: iTE I/O Controller Chip, BIOS: 1 x 128 Mbit Flash, Form Factor: Micro ATX (24.4cm x 24.4cm)